Red Hat vulnerabilities
We track 2,065 vulnerabilities in Red Hat products across 60+ products. 2,057 are rated high or critical, and 99 have been exploited in real attacks. The most recent was published on November 13, 2026.
Latest Red Hat vulnerabilities
- 8.5 High severity
Multicluster Global Hub 1.4.9: Insufficient Verification of Data Authenticity
A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can mani
- 9.9 Critical severity
Red Hat Enterprise Linux 9: Integer Underflow (Wrap or Wraparound)
A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to i
- 7.8 High severity
Red Hat Enterprise Linux 6: Out-of-bounds Write
A flaw was found in the GIMP image manipulation program, specifically within its Seattle Filmworks file loader. A remote attacker could exploit this vulnerability by tricking a user into opening a specially crafted Seattle Filmworks file. This could lead to a
- 7.1 High severity
Red Hat Enterprise Linux 10: Integer Overflow or Wraparound
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values c
- 7.6 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Write
A heap out-of-bounds write vulnerability was found in the GStreamer gst-plugins-bad adpcmdec element when decoding IMA/DVI ADPCM audio. Insufficient validation of the per-block sample count for multi-channel streams allows a crafted WAV file to cause writes be
- 7.8 High severity
Red Hat Enterprise Linux 6: Incorrect Calculation of Buffer Size
A heap-based buffer overflow vulnerability exists in the GIMP DDS (DirectDraw Surface) file parser. When a crafted DDS file declares a D3D9 pixel format but sets a lower bits-per-pixel (bpp) value in the header, the loader allocates an undersized heap buffer.
- 7.5 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attac
- 7.8 High severity
Red Hat Enterprise Linux 10: Incorrect Authorization
A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user'
- 7.5 High severity
Red Hat Enterprise Linux 10: Allocation of Resources Without Limits or Throttling
A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker
- 8.1 High severity
Red Hat Build of Keycloak: Authentication Bypass by Capture-replay
A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker
- 9.8 Critical severity
Red Hat build of Keycloak 26.4: Origin Validation Error
A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking onl
- 8.8 High severity
Red Hat build of Keycloak 26.4: Access of Resource Using Incompatible Type
A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update i
- 8.1 High severity
Red Hat build of Keycloak 26.4: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive
- 8.1 High severity
Red Hat build of Keycloak 26.4: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parame
- 9.1 Critical severity
Red Hat build of Keycloak 26.4: Improper Verification of Cryptographic Signature
A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys
- 7.3 High severity
libkcapi: Use After Free
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
- 9.0 Critical severity
Red Hat Advanced Cluster Management for…: Privilege Defined With Unsafe Actions
A flaw was found in the Application Subscription controller (multicluster-operators-subscription) of Red Hat Advanced Cluster Management for Kubernetes (ACM). A user with namespace-scoped "edit" privileges in an ACM hub namespace can create a Channel resource
- 9.1 Critical severity
multicluster engine for Kubernetes 2.1: Incorrect Privilege Assignment
A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant ad
- 7.1 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Read
A flaw was found in SSSD. The extract_authtok_v1() function in the PAM responder does not validate the auth_token_length field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM r
- 7.8 High severity
Red Hat Enterprise Linux 9: Incorrect Calculation of Buffer Size
A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffe
- 7.2 High severity
Red Hat build of Keycloak 26.6: Missing Authorization
A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permissions V2 (FGAP V2) is enabled. This issue allows a sub-administrator with permission to create users to add those users to any group, even groups the sub-administrator is
- 8.2 High severity
Red Hat Ansible Automation Platform 2.6 for…: Improper Certificate Validation
A flaw was found in aap-gateway, a component of Ansible Automation Platform's Event-Driven Ansible (EDA). An unauthenticated remote attacker can bypass mutual Transport Layer Security (mTLS) authentication for event streams. This is achieved by manipulating th
- 7.5 High severity
gnome-remote-desktop: Uncontrolled Resource Consumption
A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Stack-based Buffer Overflow
A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remot
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Improper Neutralization of Special Elements used in an LDAP Query
A flaw was found in 389 Directory Server. An unauthenticated remote attacker can inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler performs the search against cn=config with elevated replication pl
- 8.5 High severity
Red Hat Advanced Cluster Security 4: Insufficient Verification of Data Authenticity
A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). When processing Kubernetes Deployments, ACS replaces deployment identity metadata based on the openshift.io/encoded-deployment-config label. A user with permission to create Deployme
- 8.1 High severity
Red Hat build of Keycloak 26.6: Improper Authentication
Keycloak provides a way to let users log in using Microsoft accounts while restricting access to a specific organization (tenant). A flaw was discovered where this restriction is ignored when using the token exchange feature. This means an attacker with a vali
- 8.1 High severity
Red Hat build of Keycloak 26.6: Missing Authorization
Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check
- 7.8 High severity
yggdrasil-worker-package-manager: Improper Neutralization of Argument Delimiters in a Command
A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misint
- 8.8 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an LDAP Query
A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes
- 7.6 High severity
Cost Management 4: Server-Side Request Forgery
A flaw was found in the koku-metrics-operator for Red Hat OpenShift. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary upload URL. The operator attaches its own Kubernetes service-account beare
- 7.5 High severity
Red Hat Enterprise Linux 10: Integer Overflow or Wraparound
A signed integer overflow in the PCP __pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet r
- 7.3 High severity
Red Hat Enterprise Linux 10: Missing Authentication for Critical Functionality
An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.
- 8.8 High severity
Red Hat Enterprise Linux 10: Exposure of File Descriptor to Unintended Control Sphere
A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.
- 7.2 High severity
Red Hat Quay 3.10: Incorrect Authorization
A flaw was found in Quay. A user configured in GLOBAL_READONLY_SUPER_USERS is able to view robot account tokens for repositories they are not a member of, allowing an attacker with read-only superuser privileges to impersonate any robot account.
- 7.8 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Write
An out-of-bounds write vulnerability was found in the BFD library's DLX ELF backend (bfd/elf32-dlx.c) in GNU binutils. The dlx_rtype_to_howto() function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on att
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Privilege Management
A flaw was found in CRIU's handling of restartable sequences (rseq) during checkpoint/restore. A malicious process inside a container can register an rseq critical section that hijacks CRIU's parasite code injection during checkpoint, allowing it to spoof the
- 7.6 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of CRLF Sequences
A flaw was found in sg3_utils. The sg_inq command, when invoked with the --export option, outputs device identification data without sanitizing control characters in SCSI name string fields. A newline character embedded in a device-supplied name string can inj
- 8.5 High severity
Red Hat OpenShift Container Platform 4.12: Interpretation Conflict
A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys (X-Forwarded-User) but does not strip underscore-variant keys (X_Forwarded_User) from incoming requests. WSGI and PHP frameworks normalize bot